The javac command compiles all the .java files in the package's directory. Since they're all in the same package/directory, this works. It also puts the generated .class files in the same directory, which may or may not be what you want.

To put them in a different directory, use the -d option and supply a path.

javac -d bin src/com/osama/GHide/*.java

Then to run:

java -cp ./bin com.osama.GHide.EnteringPoint

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